/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package  battleshipgame.ui;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author ����� 
 */
@WebServlet(name = "ClockServlet", urlPatterns = {"/ClockServlet"})
public class ClockServlet extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        long start = System.currentTimeMillis();
        if (request.getServletContext().getAttribute("beginTime") == null) {
            request.getServletContext().setAttribute("beginTime", Long.toString(start));
            request.getServletContext().setAttribute("currentTime", Long.toString(start));
        } else {
            if (getServletContext().getAttribute("gameEnded") == null) {
                request.getServletContext().setAttribute("currentTime", Long.toString(start));
            }
        }
        String curTime = request.getServletContext().getAttribute("currentTime").toString();
        String startTime = request.getServletContext().getAttribute("beginTime").toString();
        long diff = Long.parseLong(curTime) - Long.parseLong(startTime);
        int time = (int) (diff / 1000);
        try {

            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet ClockServlet</title>");
            out.println("</head>");
            out.println("<body>");
            out.println("<div id=\"gameTime\"");
            out.println("<h4>Total Game Time: " + time + " Seconds</h4>");
            out.append("<hr>");
            out.println("</div>");
            out.println("</body>");
            out.println("</html>");

        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
